CN217472839U - A cleanable pure water filter assembly and filter - Google Patents

Abstract

The utility model discloses a but clean formula pure water filtering component and filter, including the cartridge filter, the lateral wall intercommunication of cartridge filter has the inlet tube, and the tubulose filter tube has been cup jointed to the cartridge filter, and the upside of filter tube is sealed to have the preforming, and the filter tube lateral wall is the screw thread form of compressible state, and the blow off pipe is installed to blowdown chamber bottom, and the preforming upside is connected with the slide bar that pushes down the preforming. Because so the initial coarse filtration stage, impurity is more, so can accumulate impurity after filter tube lateral wall one end time and lead to the infiltration rate to reduce, in order to avoid changing the filter tube, it possesses the back flush function, through slide bar compression preforming, makes the vertical compression of filter tube, and the inside water reverse flow of filter tube volume shrink extrusion makes the impurity that adsorbs on the filter tube break away from, further discharges through blowdown chamber and blow off pipe.

Description

A cleanable pure water filter assembly and filter

technical field

The utility model belongs to the technical field of pure water filtering equipment, in particular to a cleanable pure water filtering component and a filter.

Background technique

The water used in the laboratory is ultrapure water, which contains almost no impurities, and the amount of ions is also very low, which meets the general experimental water, and the impurities in the water affect the final experimental data.

The pure water filter in the laboratory can be directly connected to tap water, and it has a filter device inside, which can filter and reduce rust, sediment, color, odor and organic matter, and the filter layer in order to fully achieve the filtering effect, the filter layer is There are many types and different divisions of labor. The filter layer in the front section mainly filters visible impurities, flocs, etc., while the filter layer in the rear section mainly absorbs microorganisms and odors in the water body. The front filter layer is also the most easily blocked filter layer due to the more and more complicated impurities intercepted by filtration. It needs to be cleaned and replaced regularly, otherwise it will greatly affect the water output efficiency.

In the pure water filter in the prior art, the filter layer in the front section is difficult to assemble and disassemble due to the consideration of tightness, and the replacement and cleaning efficiency is low. Therefore, the utility model mainly solves the problem that the front filter cartridge of the pure water filter is difficult to clean due to the difficulty in disassembly and assembly.

Utility model content

The purpose of the utility model is to provide a cleanable pure water filter assembly and filter, mainly to solve the problem that the front filter cartridge of the pure water filter is difficult to clean due to the difficulty of disassembly and assembly.

In order to solve the above-mentioned technical problems, the utility model is realized through the following technical solutions:

A cleanable pure water filter assembly includes a filter cartridge, the side wall of the filter cartridge is connected with a water inlet pipe, the filter cartridge is sleeved with a tubular filter tube, and the lower side of the filter tube is sealed at the bottom of the filter cartridge , the upper side of the filter tube is sealed with a pressing sheet, the upper side of the filter cartridge is sealed with a cover plate, the cover plate is connected with a water outlet pipe, and the water outlet pipe passes through the cover plate and the pressing sheet and extends to the inside of the filter tube ;

The side wall of the filter tube is threaded in a compressible state, a sewage discharge cavity is installed on the lower side of the filter cartridge, a sewage discharge pipe is installed at the bottom of the sewage discharge cavity, and the upper side of the pressing sheet is connected with a sliding rod for pressing the pressing sheet down. , the sliding rod passes through the cover plate and is slidably matched with the passing part of the cover plate.

Further, the filter tube is sleeved with a spring, and the thread pitch of the spring is the same as the thread pitch of the filter tube.

Further, a sealing ring is installed on the edge of the pressing sheet, and the sealing ring is located between the pressing sheet and the inner side wall of the filter cartridge.

Further, the pressing sheet is provided with a sealing sleeve for the water outlet pipe to pass through, and the pressing sheet is slidably fitted up and down on the water outlet pipe through the sealing sleeve.

Further, there are two sliding rods, which are respectively located on both sides of the water outlet pipe, and the free ends of the sliding rods are provided with pressure rods.

A cleanable pure water filter includes a casing, and the cleanable pure water filter assembly, activated carbon filter assembly and reverse osmosis membrane filter assembly are sequentially installed inside the casing from a water inlet end to a water outlet end.

The utility model has the following beneficial effects:

The filter assembly is the initial filtration section of multi-stage filtration of pure water. Since it is the initial coarse filtration stage, there are many impurities, so one end of the side wall of the filter tube will accumulate impurities after a period of time, which will reduce the water seepage rate. In order to avoid replacing the filter tube, it has Backwash function, open the sewage pipe and close the water outlet pipe in the backwash state, the side wall of the filter pipe is compressible and threaded, and the sliding rod compresses the tablet to compress the filter pipe longitudinally, and the volume of the filter pipe shrinks to squeeze the internal water in the reverse direction. Flow, so that the impurities adsorbed on the filter tube are separated, and further discharged through the sewage cavity and the sewage pipe.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings required for the description of the embodiments will be briefly introduced below. For those of ordinary skill in the art, without creative work, the Additional drawings can be obtained from these drawings.

Figure 1: Schematic diagram of the structure of the present utility model.

Figure 2: The filter tube of the present utility model has a cutaway structural diagram.

Figure 3: Schematic diagram of the structure of the filter of the present invention.

In the accompanying drawings, the list of components represented by each number is as follows:

Filter cartridge 1, water inlet pipe 11, filter pipe 2, pressing sheet 21, cover plate 13, water outlet pipe 12, sewage chamber 3, sewage pipe 31, sliding rod 4, spring 24, sealing ring 23, sealing sleeve 22, shell 5, Activated carbon filter assembly 51, reverse osmosis membrane filter assembly 52.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

In this utility model, it should be understood that: "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "surrounding" and other indication orientations or The positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components referred to must have a specific orientation.

As shown in Figure 1: a cleanable pure water filter assembly, including a filter cartridge 1, the side wall of the filter cartridge 1 is connected with a water inlet pipe 11, the water inlet pipe is generally connected to a tap water pipeline, and has valve control. 1 is sleeved with a tubular filter tube 2, the lower side of the filter tube 2 is sealed at the bottom of the filter cartridge 1, the upper side of the filter tube 2 is sealed with a pressing sheet 21, and the upper side of the filter tube 1 is sealed with a cover plate 13. The cover plate 13 is communicated with a water outlet pipe 12, and the water outlet pipe 12 passes through the cover plate 13 and the pressing sheet 21 and extends to the interior of the filter tube 2;

The side wall of the filter tube 2 is threaded in a compressible state, a sewage discharge chamber 3 is installed on the lower side of the filter cartridge 1, a sewage discharge pipe 31 is installed at the bottom of the sewage discharge chamber 3, and a sewage discharge pipe 31 is installed on the upper side of the pressing sheet 21. The sliding rod 4 of the pressing sheet 21 is pressed down, and the sliding rod 4 passes through the cover plate 13 and slidably fits with the passing part of the cover plate 13 .

The filter assembly in the utility model is the initial filter section of multi-stage filtration of pure water. The incoming raw water is tap water. After entering the filter cartridge, it enters the inside of the filter tube through the filtering action of the side wall of the filter tube, and the granular impurities are removed by the side of the filter tube. Wall interception, the filter tube side wall material is polypropylene filter membrane, commonly known as PP cotton. Since it is the initial coarse filtration stage, there are many impurities, so the impurities will accumulate at one end of the side wall of the filter tube after a period of time, which will reduce the water seepage rate.

In order to avoid replacing the filter tube, it has the function of backwashing. In the backwashing state, the sewage pipe is opened and the water outlet pipe is closed. The side wall of the filter tube is a compressible thread. The volume shrinks and squeezes the internal water to flow in the opposite direction, so that the impurities adsorbed on the filter tube are detached and further discharged through the sewage cavity and the sewage pipe.

This compressed reverse water flow not only backwashes the filter tube, but also the side walls of the filter tube rub against each other in the compressed state, which easily breaks the adsorbed agglomerated impurities and flows out with the water flow.

As shown in Figure 2: the filter tube 2 is sleeved with a spring 24, and the thread pitch of the spring 24 is the same as the thread pitch of the filter tube 2. The spring steel wire passes through the pleats of the filter tube, which has the function of maintaining the shape of the filter tube, and at the same time, it automatically rebounds after being compressed and pressed.

As shown in FIG. 1 , a sealing ring 23 is installed on the edge of the pressing sheet 21 , and the sealing ring 23 is located between the pressing sheet 21 and the inner side wall of the filter cartridge 1 . It is used to have a sealing effect to prevent the water in the lower part of the tablet from flowing to the upper part of the tablet along the gap between the tablet and the filter cartridge during the compression process.

As shown in FIG. 1 , the pressing piece 21 is provided with a sealing sleeve 22 for the water outlet pipe 12 to pass through. It is used for stabilizing the up and down sliding of the tablet, and the sealing sleeve simultaneously functions to seal and stabilize the sliding of the tablet. The outlet pipe extends into the filter tube with an extension section for the guide rail for the tablet to move.

As shown in FIG. 1 , there are two sliding rods 4 , which are respectively located on both sides of the water outlet pipe, and the free ends of the sliding rods are provided with pressure rods. Used to drive the slider to move at the same time.

As shown in Figure 3: a cleanable pure water filter, comprising a casing 5, the inside of the casing 5 is sequentially installed from the water inlet end to the water outlet end with the cleanable pure water filter assembly, the activated carbon filter assembly 51 and the Reverse osmosis membrane filter assembly 52 .

The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments are not exhaustive of all the details. Obviously, many modifications and variations are possible in light of the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention.

Claims (6)

1. a cleanable pure water filter assembly is characterized in that: It comprises a filter cartridge (1), the side wall of the filter cartridge (1) is communicated with a water inlet pipe (11), the filter cartridge (1) is sleeved with a tubular filter tube (2), and the filter tube (2) The lower side of the filter tube (1) is sealed at the bottom of the filter cartridge (1), the upper side of the filter tube (2) is sealed with a pressing sheet (21), the upper side of the filter cartridge (1) is sealed with a cover plate (13), the cover The plate (13) is communicated with a water outlet pipe (12), and the water outlet pipe (12) passes through the cover plate (13) and the pressing sheet (21) and extends to the inside of the filter pipe (2); The side wall of the filter tube (2) is threaded in a compressible state, a sewage discharge chamber (3) is installed on the lower side of the filter cartridge (1), and a sewage discharge pipe (31) is installed at the bottom of the sewage discharge chamber (3). , the upper side of the pressing sheet (21) is connected with a sliding rod (4) for pressing the pressing sheet (21) downward, the sliding rod (4) passes through the cover plate (13) and passes through the cover plate (13) Partial slip fit. 2. A cleanable pure water filter assembly according to claim 1, characterized in that: the filter tube (2) is sleeved with a spring (24), and the thread pitch of the spring (24) is the same as that of the filter tube (2) The thread pitch is the same. 3. The cleanable pure water filter assembly according to claim 1, wherein a sealing ring (23) is installed on the edge of the pressing sheet (21), and the sealing ring (23) is located at the pressing sheet (21). ) and the inner wall of the filter cartridge (1). 4. The cleanable pure water filter assembly according to claim 1, wherein the pressing sheet (21) is provided with a sealing sleeve (22) through which the water outlet pipe (12) passes, and the pressing sheet (21) is provided with a sealing sleeve (22) through which the water outlet pipe (12) passes. 21) The sealing sleeve (22) is slidably fitted on the water outlet pipe (12) up and down. 5 . The cleanable pure water filter assembly according to claim 1 , wherein there are two sliding rods ( 4 ), which are respectively located on both sides of the water outlet pipe, and the free ends of the sliding rods are provided with pressure rods. 6 . 6. A cleanable pure water filter, which adopts the cleanable pure water filter assembly of any one of claims 1-5, characterized in that: it comprises a casing (5), and the inside of the casing (5) is filled with water. The cleanable pure water filter assembly, the activated carbon filter assembly (51) and the reverse osmosis membrane filter assembly (52) are sequentially installed from the end to the water outlet end.

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